Professor Rahim Tafazolli, Head of the Centre for Communication Systems Research, University of Surrey 5G Innovation Centre: the UK opportunities - See more at: http://www.techuk.org/about/uk-spectrum-policy-forum All Rights Reserved

1. 5GIC
The UK Opportunities
Professor Rahim Tafazolli
Director, CCSR, 5GIC
University of Surrey
R.Tafazolli@surrey.ac.uk

2. Future is about connectivity
Communications & Control
Towards Digital Economy and Society
Modernisation of aging industries
Transportation
Energy
Manufacturing
Health
…
Smart Homes, Cities and Countries

3. 5G in one sentence
“Always Sufficient Rate” to give users the perception of Infinite Capacity”

4. Enabled by smart phones and
broadband mobile
Trends and Drivers
The Internet!

5. ● SU-MIMO 2 x 2
● SU-MIMO 4 x 2
● SU-MIMO 4 x 4
● SU-MIMO 8 x 2
● MU-MIMO 4 x 2
● MU-MIMO 8 x 2
● CS/CB-CoMP 4 x 2
● CS/CB-CoMP 8 x 2
● JP-CoMP 4 x 2

6. WiFiCellular WiFi- Throughput

7. WiFiCellular WiFi- Spectral Efficiency

8. 5GIC approach
Research starts from end user QoE (H2H, H2D, D2D)
• Unlike 2G….4G , designed for end device
• Data rate is not the differentiation between 5G and previous generations
• Area spectral & energy efficiencies, Latency (radio and end to end) ..
• Spectrum packing
No difference between licenced and licenced-exempt bands
• Broadcast, Cellular, WiFi technologies
• Differences in Freq Bands
• …….while services offered the same or converging..
» Data, Video, Audio

9. 5GIC Research Approaches
Two complementary
Content, User and Network Context
Dynamic user profiling
Data Handling
» Intelligent Content (Storage, Search,
Delivery) Networking
Efficient use of radio spectrum
Area Spectral Efficiency
Energy Efficiencies
Spectrum Uniformity
» licensed (and exempt) bands

10. Key Features of 5G
Capture and use the User context, Content context and
Network context
QoE and resources efficiency based on user profile
Utilisation of telecom and IoT Big Data
In-network processing (storage, transmission) for content
Dense small cell
Device to device
Spectrum Sensing
Utilize the licensed and unlicensed band
New frequency bands: including mm-Wave
Split data and control radio network architecture
Multi cell cooperation
Massive MIMO
Full duplex radio

11. Coverage and Capacity
One size does not fit all!
Low+ Medium+ High Dense cells
Capacity limited
Coverage limited

12. AirWhy New Air-Interface?
Low to medium density cells
4G (LTE-A,B,C) large cells
High Density Cells
Objectives is NOT link spectral efficiency
Very low control signalling overhead for management, relaxes the
stringent time-frequency control inherent in OFDMA
Flexible implementation of carrier aggregation across highly fragmented
spectrum including license-exempt band
Highly energy efficient
Allow full-duplex operation
Sub-millisecond Air-Interface latency
Support fast and reliable spectrum sensing for opportunistic spectrum
sharing with and without database support
Support distributed MAC between network and mobile device
Support of device to device communications
Scalable for Machine type communications
….

13. 5G system approach - Summary
5G includes: All other National Critical infrastructures
including mobile broadband
New business models
Old approach to 2G, 3G and 4G not sustainable
Focus : Perceived infinite capacity
Latency
Energy Efficiency
Scalability
Reliability and Robustness
Distribute control between Network and Devices
Uniformity between licensed and license-exempt bands (including
Broadcast)
Dense cell technologies
Explore and understand new frequency bands

14. 5G Targets
Maximum, Average or Percentile as cell rates not
relevant
Targets:
Area Spectral Efficiency…
Energy Efficiency….
Latencies: E2E and Over The Air…
QoE….